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Hydrazine, 1,1-dimethyl-

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Gas phase ion energetics data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
LL - Sharon G. Lias and Joel F. Liebman

Quantity Value Units Method Reference Comment
IE (evaluated)7.29 ± 0.05eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)927.1kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity894.7kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
7.29 ± 0.05EQMautner(Meot-Ner), Nelsen, et al., 1984LBLHLM
8.05 ± 0.05PEVovna, Vilesov, et al., 1975LLK
8.28PEBodor, Dewar, et al., 1970RDSH
7.67 ± 0.05PIAkopyan and Vilesov, 1963RDSH
7.46 ± 0.02PIAkopyan, Vilesov, et al., 1963RDSH
8.1 ± 0.1EIDibeler, Franklin, et al., 1959RDSH
8.82PERademacher, 1975Vertical value; LLK
8.85PEKimura, Katsumata, et al., 1975Vertical value; LLK
8.88PENelsen and Buschek, 1974Vertical value; LLK
8.88PENelsen and Buschek, 1974, 2Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H7N?+11.2 ± 0.2?PIAkopyan and Vilesov, 1963RDSH
N2H2?+12.9 ± 0.1?EIDibeler, Franklin, et al., 1959RDSH
N2?+13.2 ± 0.1?EIDibeler, Franklin, et al., 1959RDSH
C2H4N?+12.8 ± 0.2?EIDibeler, Franklin, et al., 1959RDSH
CH3+14.5 ± 0.3?EIDibeler, Franklin, et al., 1959RDSH
CH5N2+8.60CH3EIBurgers, Drewello, et al., 1989LL
CH5N2+8.4 ± 0.1CH3PIAkopyan and Vilesov, 1963RDSH
CH5N2+9.7 ± 0.2CH3EIDibeler, Franklin, et al., 1959RDSH
C2H5N+8.8 ± 0.1?PIAkopyan and Vilesov, 1963RDSH
C2H5N+12.5 ± 0.2?EIDibeler, Franklin, et al., 1959RDSH
C2H6N+10.45 ± 0.05?EIFisher and Henderson, 1967RDSH
C2H6N+9.0 ± 0.2?PIAkopyan and Vilesov, 1963RDSH
C2H6N+10.7 ± 0.1?EIGowenlock, Jones, et al., 1961RDSH
C2H6N+10.9 ± 0.2?EIDibeler, Franklin, et al., 1959RDSH
C2H6N2+9.5 ± 0.1H2PIAkopyan and Vilesov, 1963RDSH
C2H7N2+10.1 ± 0.1HEIFoner and Hudson, 1970RDSH
C2H7N2+8.7 ± 0.2HPIAkopyan and Vilesov, 1963RDSH
C2H7N2+10.0 ± 0.3HEIFoner and Hudson, 1962RDSH
C2H7N2+10.2 ± 0.2HEIDibeler, Franklin, et al., 1959RDSH
NH2+13.3 ± 0.1?EIGowenlock, Jones, et al., 1961RDSH
N2H2+8.6 ± 0.1C2H6PIAkopyan and Vilesov, 1963RDSH

References

Go To: Top, Gas phase ion energetics data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Mautner(Meot-Ner), Nelsen, et al., 1984
Mautner(Meot-Ner), M.; Nelsen, S.F.; Willi, M.R.; Frigo, T.B., Special effects of an unusually large neutral to radical cation geometry change. Adiabatic ionization energies and proton affinities of alkylhydrazines, J. Am. Chem. Soc., 1984, 106, 7384. [all data]

Vovna, Vilesov, et al., 1975
Vovna, V.I.; Vilesov, F.I.; Lopatin, S.N., Photoelectron spectra of hydrazine and some alkyl derivatives, Opt. Spectrosc., 1975, 38, 143. [all data]

Bodor, Dewar, et al., 1970
Bodor, N.; Dewar, M.J.S.; Jennings, W.B.; Worley, S.D., Photoelectron spectra of molecules-IV.Ionization potentials and heats of formation of some hydrazines and amines, Tetrahedron, 1970, 26, 4109. [all data]

Akopyan and Vilesov, 1963
Akopyan, M.E.; Vilesov, F.I., Decay of the molecular ions formed in photoionization of hydrazine and some of its alkyl derivatives, Kinetika i Kataliz, 1963, 4, 39, In original 32. [all data]

Akopyan, Vilesov, et al., 1963
Akopyan, M.E.; Vilesov, F.I.; Terenin, A.N., Mass spectrometric investigation of photoionization of molecules and dissociation of excited molecular ions, Izv. Akad. Nauk SSSR, Ser. Fiz., 1963, 27, 1083, In original 1054. [all data]

Dibeler, Franklin, et al., 1959
Dibeler, V.H.; Franklin, J.L.; Reese, R.M., Electron impact studies of hydrazine and the methyl-substituted hydrazines, J. Am. Chem. Soc., 1959, 81, 68. [all data]

Rademacher, 1975
Rademacher, P., Acyclische Hydrazine, Chem. Ber., 1975, 108, 1548. [all data]

Kimura, Katsumata, et al., 1975
Kimura, K.; Katsumata, S.; Osafune, K., Photoelectron spectroscopic study of skew compounds. Methylhydrazine and unsymmetrical dimethylhydrazine, Bull. Chem. Soc. Jpn., 1975, 48, 2736. [all data]

Nelsen and Buschek, 1974
Nelsen, S.F.; Buschek, J.M., Photoelectron spectra of hydrazines. IV. Empirical estimation of lone pair-lone pair dihedral angles and prediction of lone pair ionization potentials for some cyclic and bicyclic hydrazines, J. Am. Chem. Soc., 1974, 96, 6982. [all data]

Nelsen and Buschek, 1974, 2
Nelsen, S.F.; Buschek, J.M., Photoelectron spectra of hydrazines. III. Evidence for similar lone pair-lone pair dihedral angles for acyclic hydrazines, J. Am. Chem. Soc., 1974, 96, 2392. [all data]

Burgers, Drewello, et al., 1989
Burgers, P.C.; Drewello, T.; Schwarz, H.; Terlouw, J.K., CH5N2 hydrazyl radicals, cations and dication radicals studied by mass spectrometry. Is the N-protonated formaldehyde hydrazon cation +CH2-NH-NH2 a bridged species?, Int. J. Mass Spectrom. Ion Processes, 1989, 95, 157. [all data]

Fisher and Henderson, 1967
Fisher, I.P.; Henderson, E., Mass spectrometry of free radicals, J. Chem. Soc. Faraday Trans., 1967, 63, 1342. [all data]

Gowenlock, Jones, et al., 1961
Gowenlock, B.G.; Jones, P.P.; Majer, J.R., Bond dissociation energies in some molecules containing alkyl substituted CH3, NH2, and OH, J. Chem. Soc. Faraday Trans., 1961, 57, 23. [all data]

Foner and Hudson, 1970
Foner, S.N.; Hudson, R.L., Mass spectrometric studies of atom-molecule reactions using high-intensity crossed molecular beams, J. Chem. Phys., 1970, 53, 4377. [all data]

Foner and Hudson, 1962
Foner, S.N.; Hudson, R.L., Mass spectrometry of inorganic free radicals, Advan. Chem. Ser., 1962, 36, 34. [all data]


Notes

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